Laptop Boots to Grey and White Lines then to Windows. Why?

[TigerG24]

Problem: I have a an HP Envy 17 laptop. When it boots it shows gray and white lines for about 2 minutes. Then Windows 11 Pro starts and it works normally. There are two graphics cards in the laptop. If the laptop lid is closed for several minutes and then opened, the gray and white bars appear. The laptop then needs to be restarted.Investigation: The laptop has an Intel Graphics 620 and an Nvidia MX250. I have tried disabling one at a time to see if either card has issues from within Windows 11. Both graphic cards work fine when it is the only enabled card and when both cards are enabled. I

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